Communications system



July 26, 1960 D. A. HARRISON COMMUNICATIONS SYSTEM mmhnmzoo muhnazoo mmhnmiOo Sm 3m m 8m 8w 8 E a; a; as g 58 EM a;

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COMMUNICATIONS SYSTEM 51 Sheets-Sheet 7 Filed April 17, 1956 ARRAY READ IN CONTROL FIG. 5b

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July 26, 1960 Filed April 17, 1956 FIG.7a

D. A. HARRISON COMMUNICATIONS SYSTEM HALF WRITE CURRENT GEN.

/ 31 Sheets-Sheet 8 PARI'IY 'STD STD

INVENTOR.

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SAMPLE July 26, 1960 D. A. HARRISON 2346 98 I ponmumcknous SYSTEM Filed April 17. 1956 31 Sheets-Sheet 9 1a., STD

IN VEN TOR.

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1 O 1 O 1 O 1 FF 1=|= FF FF GMSR , STAGE STABE 1 5 l l I I l l l l l 1 l I I July 26, 1960 Filed April 17, 1956 D. A. HARRISON COMMUNICATIONS SYSTEM 31 Sheets-Sheet l4 PARITY GENERATOR EVEN PARITY WORD 1.3,0R5(CHANNEL1) J,

I! I II II II II n 886 1 000 FROM 90 907 SITE OR OR TO PARITY l- D 902 903 OR 904 0R GATE 909 N 887 T 8: --9o1 I e93, 000 932 FROM CLOCK EVEN L892 909 EVEN PARITY WORD 20R 4(CHAN n EVEN PARITY WORD 20R4(CHAN 2) FIG. 11 C FlG.Ha F|G.11b

y 1960 D. A. HARRISON 2,946,986

COMMUNICATIONS SYSTEM N JMZZdIQ .l| llllllllllll ll JOFPZOO July- 20 31 Sheets-Sheet 15 Filed April 17, 19,56

July 26, 1960 D. A. HARRISON COMMUNICATIONS SYSTEM 31 Sheets-Sheet 16 Filed April 17, 1956 maaio 825 mmm July 26, 1960 D. A. HARRISON 2,946,986

COMMUNICATIONS SYSTEM Filed April 1'7, 1956 31 Sheets-Sheet 1'7 '5 to an: 3 6

July 26, 1960 Filed April 17, 1956 31 Sheets-Sheet 19 FIG. 140.

A A CHANNEL 1 CONTROL A SHIFT {RESET a YSTAGE PRIME 2 DISTRIBUTOR s R XT-1/ XT- ISSHIFTING 3 STAGE 5-1 xT-3 DELAYED 1 oR eT -1 e OR FF FF A 7 51 C C 5 O A O ,XTE

e29 sxe XT-SDELAYED l DU 745 O 1 /748 I k LWA XT-6 GT 143 GT GT 7 6 --747 

